Guilty pleasure

Beads of sweat rolled down Caleb's forehead as he pushed himself as he got to the ten mile mark on the treadmill. The burning in his calf was a welcoming sensation, he could feel the tired muscles straining to keep pace with his demand on the run. 

Watching the mile meter slowly creep up to the ten mile mark he pushed himself harder increasing the speed and incline of the machine, he could feel his calf on fire, his legs shaking and growing weak yet with determination he pushed through it all. 

He roared in triumph as he made his mark, his feet jumping to the sides as he pressed a few buttons and the machine started to whirl down to a stop.

Jumping off the machine he walked around with his arms up allowing his body to settle and get his breathing back to normal. He never felt so alive feeling the runners high, he wanted to take advantage of that on other workouts before the high died down. 

Grabbing a spray bottle and paper towel he wiped down the tread and made way to the weights. Grabbing a couple of dumbbells he started to curls counting the reps as he went. 

Caleb had been coming to the gym five sometimes six days a week to get out his sexual frustration. He had been dating his boyfriend Skylar for nearly a year now and though he loves him with all his heart, sex had always been an issue with them, well more like Caleb in general. He loves the connect they both have when making love and making love is amazing but his dick is barely pushing six and half inches and not that much girth to work with real makes sex boring and have to jack off riggerisluy in order to cum and make it seem like Skylar made him cum. 

Getting his selfish thoughts out of his head he concentrated on his reps.

"Hey stranger long time no see" A deep voice said. 

Stopping what he was doing Caleb set the weights down and turned his head back. 

His inner goodies started doing the tango at the sight of the modern day Adonis. It was Alex, Skylar's older brother. 

He stood nearly six for five his short brown hair damp with sweat. He wore black under armor and gym shorts...freeballing?

"eyes up here" He chuckled. 

Caleb's cheeks flushed red.

"I saw you running and I have to say I am very impressed with that workout really pushed yourself" 

Trying to find his voice he finally spoke. "Yeah, I love a good run it helps push out the troubles of the day away" 

"I hear ya there bud" 

Walking over to the far end of the rack he picked up a set of heavier dumbbells and walked over to me and began his sets. 

Caleb watching in awe as his biceps swelled with each curls, each one almost the size of his head. He was just a well muscle god. 

What the fuck? Caleb thought to himself. Why was he having such thoughts about his boyfriends brother. 

Trying not to look weird he grabbed his sets and finished his reps. 

It was getting late as both boy made small talk and workout together, Alex even helped Caleb do squats. Though not knowing it Alex was watching Caleb's fat ass bulge in his shorts with each squat wanting to push his groin into that ass but manage to hold back his temptation. 

Both boys walked into the locker after wiping down their weights and machines they used, the gym was empty except the one staff member who worked the graveyard shift. 

As they began to strip Caleb looked up and saw Alex undressing in the full body mirror, he caught him the moment he pulled down his gym shirts. His legs were hairless and smooth showing the curves of his leg muscles with such definition but when he stood straight his mouth dropped open. His dick was huge!

It wasn't hard at all his meat was soft and thick hung a good six and half inches soft swaying side to side as he move to put his dirty clothes In his locker. 

Caleb looked away at the last second as Alex walked into the shower room hearing the slapping of his meat hitting his thighs. 

"Fuck Caleb stop...you have a boyfriend" He argued with himself. Quickly stripping he made his way into the shower room. Alex was on the far left, to curve his temptation Caleb when to the far end opposite of Alex. 

Turning on the water he leaned forward holding himself up with his arms against the wall, he cleared his mind feeling the hot water run down his body. 

Alex slowly crept back into his mind but this time he didn't attempt to push his thoughts away, he allowed them. He felt his dick instantly stiffen. He slowly reached down stroking his dick. 

Keeping his eyes closed the remembered every detail of that muscled god. Right down to his hung dick, he imagined what it would be like if Alex was the one to fuck him every night. He bit his lower lip as he he gripped his dick hard and stroked more and more. 

"Alex..." He moaned.

"I'm here" He said. His body was lost in lust and bliss that rational thinking was all but gone. 

Alex walked behind him his semi hard dick pressing between the fat cheek he so desired to bury his dick in and breed. One well defined muscled arm wrapped around his waist pulling Caleb closer to him and the other running his the smaller boy's toned body up to his neck and gently tilting it to the side. Caleb buried his face In the crook of the smaller boy's neck and kissed all around earning several low moans from him. Caleb's body shook with such pleasure that it almost made him cum. 

Alex smiled knowing he was the one causing Caleb to be in such a state, he could smell the sexual frustration coming off him like a d go in heat, He knew the moment that his brohter introduced Caleb to everyone that a guy like him needed to be taken care of in bed and his brother's small pecker wasn't going to cut it. 

"We...We shouldn't be doing this" Caleb moaned weakly. 

"It's not what you body is telling me...." He growled.

"Tell me you want it baby..." 

Caleb didn't respond just moaning luckily he knew ways to get his answer. The arm that was holding his waist slithered down running over Caleb's raging hard dick and deep between his legs his wet fingers easy found and slide into his tight warm hole. 

"Say it" He pumped his two big fingers into his ass.

Caleb yelped in pleasure. "YES!" He whimpered. 

Alex grinned. "Good...my brother is a good man but he is no sex god. He hasn't pleased you the way you should be pleased, fortunately for both of us I'll succeed where he has failed" 

His nearly beer can ten inch thick dick was solid hard. Good thing he always packed water resistant lube so fucks in showers were easy. 

Grabbing the smaller boy's hips he slowly pushed his fat head into the tight hole. 

Caleb groaned not accustomed to such a big dick, but Alex was patient as he worked his dick in slowly wanting Caleb to feel good and enjoy getting fucked by him. 

It took a good minute for his entire meat log was buried deep within Caleb. His heavy cum filled sack resting against his cheek.

Letting out a moan he leaned his head against Caleb's shoulder, he could feel the boy shake. 

"I got you baby boy" He reached up turning his Caleb's head towards him. 

Alex was surprised, gazing into his eyes he saw nothing but pure lust and ecstasy. He kissed him long and hard before starting his work. He slowly pulled out to the head and slowly pushed in, Caleb moaned grinding his ass back onto Alex when his cock was reburied deep within him. 

He kept this up allowing Caleb to enjoy and feel it all, his hole was tight and warm feeling it get easier to push back in him with each stroke. 

"Fuck baby boy...so warm and tight." He slowly started to pick up the pace, Caleb's fat ass bouncing and jiggling with each pound it made him that much hotter as he started really fucking him. 

Caleb moaned loudly not caring who might hear he was getting the fucking he always wanted. Needed. It was better then he imagined it to be.

The locker room echoed with sound of moaning and bodies slapping together. 

"Fuck yes fuck me baby yes!" Caleb roared. 

Alex smirked and did as requested. He pummelled his his rod over and again into his baby boy, he knew that after tonight that Caleb will all he be thinking about. Feeling the urge to cum he pulled Caleb off and spun him around hosting him up onto his hips as he settled Caleb's fat ass onto his dick. He pushed him against the wall both arms around his back and hand grasping his shoulder as he bounced the smaller boy into his dick over and over again. He could hear his whimpers and moans as his face was buried In the crook of Alex's neck. 

"I'm so close" Caleb whimpered. 

This was it. He got Caleb ahold in a way and went to town. He fucked him as hard as he could feeling his own cum getting ready to burst. 

"Yes yes Alex yes here it comes don't stop!!!" He yelled.

"FUCK!!!" The both roared. 

It was such perfect timing. Alex trusted his fat dick deep as he could as he felt ropes and ropes of hot thck cum being unleashed deep within his baby boy. Caleb's own cum shot  between their bodies, their stomachs rubbing together coating the skin in it. 

Alex knees started to shake as he was defiantly out of enegery form a mind blowing fuck and workout. He slowly lowered their bodies to the tiled floor of the shower stall. His cock remained within Caleb, as they both just sat their catching their breaths. 

Caleb's slowly lifted his head as the high slowly went away. He slowly pulled himself off Alex's semi hard dick, he moaned as he felt suddenly empty inside but with each movement he could feel the cum inside him. He leaned back against the wall looking at Alex, his eyes were closed but he was smiling. 

"That was the best fuck I have every had and I don't say that often..." 

"We can't tell anyone." Caleb said.

"What?" 

"No one can know we fucked. Your brother would be devastated...and....this was only a one time thing...i got what I need."

"Oh...i'm hurt" He grinned.

"I'm serious..."

"OKay okay..i will stay away" He got up slowly washing off his dick. "But YOU won't be able to stay away for long" He said. Rubbing his dick over Caleb's face as he turned to leave. 

"Fuck..."

The end. 

I didn't originally want to make another chapter from my first story but I figured it be hot to write what happened at the gy,m. Please rate and comment let me know how it was! Thank you!